Automatic guiding device for harrows.



J. G. LEAL. AUTOMATIC GUIDING DEVICE FORYHARROWS.

APPLICATION FILED JAN.30,1913.

1,109,076, Patented Sept. 1,1914.

(UiineSses: 5' I lnvenl'ar:

(ML-W W THE AoRRls PETERS CO.. PHOTO-LITHCL, WASHINGTON. D. c.

- UNITED sTAT s :r TENIoFFroE. 1

an'ssn o. LEAL, or A ER SFIEIQ oanrtonnIA.

AUTOMATIC GUIDING nnvrcnron; rmnnows; 7

Specification of. Letters Patent.

tentedsept. .1, 1914;

Application filed aan ary'aeis. pserialnamaaea,

T 0 all whom/it may concern: y

Be it known that I, Jnssn G. LEAL, a t

a specification. it

My present invention relates to the class of harrow attachments, and the object there- I of is to automatically direct the harrow on side hills, so that the same will fall directly behind the horses or propellingpower in; such a manner as though the harrow.wer'e being used on level ground, that is in such away as to keep the back part of theharrow.

from swerving down the hill;v

"ordinary plow and when used upon an incline, the device, as above stated, wlll keep the harrow in proper position so (that the ground will be as evenlyand properlyfharrowed as though it were level; alsokeeping the harrow directly behind the horses or or traces.

This'invention more specifically relates to an automatic device to be attached to each,

ofthe harrow by a pivot bolt, so that they:

cut the ground similarly to a harrow tooth.

The guiding elements are so attachedflby rods and levers-as to constantly attain cor-' rect parallelism, the rods and levers. being connected upon the harrow to a pivoted bar, one end of whlch 1s swingmglymounted, as

apparent. This swinging end is provided adjacent its extremity withv a weight ele ment of sufficient weight and size to auto matically swing the said guiding contri- I 3 tion to-its ,componentelements, a pain of With the above and other. objects mean; my invention relates to suchdetails of con struction, in the arrangement and com-. ,bination ofpa'rtsas will hereinafter be? fully described/and more specifically'point-i I v i H I. post, as clearly shown; jAttention is called Inde'scribing my invention in detail, refvances, such as occasion may demand.

ed out in the appended claims.

erence'willqbe'had to the accompanying propelling power, and in'thecase 'of' horses willprevent their being injured by the tugsj The like or corresponding p" rts throughout the several v ews, and 'm which;

a Figurel is a plan view of my invention,

illustratingthe guiding e'lementsin full and 'dottedlines. 2Iis'a sectional view of the device, as taken upon lines A -Ar of the Fig. 1. Fig. 3 :is a sideelevation ofthe device, illustrating'parts thereof insection;

Referring now, more particularly to the drawings, whereinyis shown a preferred embodiment of my invention, the numerallO designates a series of transversely parallel alined, spacedfapart harrow bars, the same being secured adjacent their respective extremities throughthemedium of thecross members 11. With this construction in view,

bars is-"assured, thus providing a substantially rigid framework, which in itself is Very essential to the complete and efficient operation of a device of" this character. Each of the harrow bars'before mentioned,, is provided about its longitudinal axis with a multiplicity of vertically disposed teeth 12 which, provide the absolutely essential en gaging surface by which "the clods' of dirt are completely disintegrated. 1

Eyelets 13, whichare'horizontally alined are provided upon the forwardmostharrow bar in close proximity to its respective ex j tremities. Rods, such as desig11ated*at"14:, are swingingly carried the before'men tioned eyelets, the rearextremiti es thereof being curved, as shown at 15, for engagement therewith while their forward ends are con? I M y it is apparent that the rigidity of the harrow The device-provided can be attached to an nected to an engaging element 16, as shown;

consequently allowing suitable propelling" mechanism to be securely connected thereto.

A vertically disposed post 517 is provided upon one of the'lbars' 10, preferably at a medial portion in relation to its respective extremities, thispo'st j being secured in angularly disposed brace rods 18 Rare 3pmvidedythe latter having connection" ata'their 1 lower extremities to the'forward of the h'ar-o row bars,- while their upper ends'have -en-f ."gagem'ent with an eyelet 19 carried upon the to the peculiar angular dispositionof the brace rods. Whenm this position, itisapparent that the rigidity of the post is 'aspreferably of a strong non-resilient material, consequently preventing all movement what A bar 20 1s movably soever of the posts. mounted upon the post 17, between the securing elements 21, so that it may have a horizontal, oscillatory f movement between certain of the projecting portions of the harrow teeth 12. A third brace rod 22 has connection with this bar in close proximity to its outward extremity, whileits other end is bent, as shown at 23, for engagement with an eyelet 24L oftheusua'l form provided with the upper end of the post 17.. This last mentioned rod not only adds to the assurity of the rigid position ofthe post 17, but also prevents any vertical movement of the bar 20;, thus'it will be=v comprehended that the latter is normally held-movable in a horizontal plane. a w p Contingent from and carried by the bar 20, acent its outermostpoint, is a weight element 25 embodying a degree of compact ness sufficient to operate certain guiding elements against the resistance of aplowed surface, while the frame work of the device is disposed at an angle. This element 25 may be secured about the bar in any desired or' adaptable manner, but it is apparent that its disposition, as shown in the drawings, is preferable, in view of the fact that the further the same is disposed from the post, its degree ofequation will be greater.

The guiding elements, before termed, consist essentially of a pair of elongated plates '26 carrying near one end, upstanding pintles 2-7 which extend vertically through sleeves 28 carried upon one of the bars 10, as shown, and consequently hold the plates in movable relation with the remaining structure of the device. Connecting arms 29 have connection with the upper ends of the pintles 27 as shown at 30, the outer extremities of said arms, however, being provided with suitable vertically extending openings for reception of the downwardly turned ends 31 of theconnecting rods 32. While one end of the connecting rods has engagement with the connectinga'rms 29, their other or inner ends are secured uponthe bar 20, as shown at 83,

, tomatic means for actuating the-movement adjacent its connection with the post 1-7.

The connecting arms 29, as well as the: connecting rods 32, maybe constructed from any desired material other than wood; however, they should embody sufiicient strength to communicate movement of the weighted arm 20 to the. guiding rods of the device.

7 It has been shown, from actual practice,.' :that means have to be provided for assuring the rigidity of the pintles 27 above the up-; per extremities of the sleeves 28. NVith this in view, transverse, metallic strengthening; strands 34: are employed, an intermediate;

portion of which is disposed over the ad acent pintle, whlle the1r respectlve extremities are secured to the contiguous bars 10 by suchymeans as shown at 35. It mightv be added, that the provision of the strengthening strands not only holds the pintles 27 in a rigid. position, but also prevents the dislodgment of the sleeves 28, such as may ,be" occasioned by constant jarring of the device.

As clearly illustrated in the drawings, a handle portion 36 is provided upon the harrowlO, consequently enabling the operator to change the course of the device whenever desirable. This' form of handle is .merely shown for the sake of illustration, and therefore it is apparent that any other type can be employed, if it is desired.-

' 1n the operation of my improved harrow, from the construction elucidated above, the parts of the device are normally disposed in the position shown at Fig. l of the drawings. If the harrow travels upon a side hill to thjeright thereof, the frame work will be disposed at an angle corresponding to that of the hill and will, of course, normally tend to swerve down the hill, as before pointed out. However, when the frame assumes this position, the weight will move according to gravity to assume the position shown in dotted lines in Fig. 1, whereby the plates 26 will bejdisposed at an angle corresponding in degree to that assumed by the rod20, consequently guiding the harrow always up the hill and allowing the same to normally attain a position directly behind the horses,

or other propelling power.

The advantages resultant from the use of my invention will be readily educed by'those who are conversant with the crude and un satisfactory devices heretoforeemployed in this art.

Such changes as are permissible by the sub-joined claims may be resorted to with out departing tion.

Having thus fully described my invention, what I claim as new and desire to secure by LettersPatent, is:

1. In a device of the character described,

from the spirit-of my inventhe combination with a harrow ofa series of runners movably mounted thereon and auof said runners, as and for the purpose'set forth and described 7 I i 2. In a device of the character described, the combination-with a harrow of a series of runners movably mounted thereon, and a weighted element provided upon said harrowfor actuatlng the movement of sa1drunweighted bar movably mounted upon said liar-row and means connectingsaid bar and said runners, substantially as described.

4. In a device of the character described, the combination with a harrow of a pair of runners movably mounted thereon, a weighted bar movably mounted upon said harrow, means connecting said bar at one of its ends with said runners,substantially as described.

5. In a device of the character described, the combination with a barrow of a pair of runners movably mounted thereon, a post provided upon said harrow, a bar movably mounted upon said pos'tadjacent its lower extremity, a-weight carried upon said bar near its outer end, means connecting said bar and said runners, whereby the movement of said bar will be imparted to said runners, substantially as described.

6. In a device of the character described, the combination with a harrow of'a'series of runners movably mounted upon the under side thereof, a weighted element movably mounted upon the upper-side of said harrow, means connecting said weighted element and said runners, substantially as described.

' JESSE G. LEAL, Witnesses: I

WALTER OsBoRN,

Amman BOYLE.

Copies of this patent may beobtained for five cents each, by addressing 'the' Commissioner of Patents,

Washington, D. C. 

